Q121
Open questionTRAP is . . . . . . . . whereas RST7.5, RST6.5, RST5.5 are
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ECE · all questionsMicroprocessors And Microcontrollers
Microprocessors And Microcontrollers
practice.
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Q122
Open questionHand held programmers are used for programming
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Q123
Open questionEach machine cycle of 8051 corresponds to
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Q124
Open questionIn order to enable RST 5.5, RST 6.5 and RST 7.5 interrupts. Which of the following instructions are needed?
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Q125
Open questionIn a multi-processor configuration, two coprocessors are connected to the host 8086 processor. The two co-processor instruction sets
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Q126
Open questionConsider the following instruction:
EI
MVI A, 08H
SIM
It means
EI
MVI A, 08H
SIM
It means
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Q127
Open questionThe pipelined architecture of the 8086 allows the fetch & execute cycles to . . . . . . . . instructions/clock cycle
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Q128
Open questionAn I/O processor controls the flow of information between
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Q129
Open questionWhich of the following are included in the architecture of a computer?
1. Addressing modes, CPU
2. Instruction modes, data formats
3. Secondary memory, operating system
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1. Addressing modes, CPU
2. Instruction modes, data formats
3. Secondary memory, operating system
Select the correct answer from the options given below:
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Q130
Open questionWhat is the maximum internal clock frequency of 8086 microprocessor?
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Q131
Open questionNormally PUT instruction is programmed in which part of the logic unit in a PLC program?
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Q132
Open questionThe clock frequency of an 8085 microprocessor based system is 3 MHz. What should be the minimum pulse width of the INTR signal so that it is recognized successfully?
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Q133
Open questionIn a 8085 microprocessor, the shift registers which store the result of an addition and the overflow bit are, respectively
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Q134
Open questionThe three basic sections of microprocessor are:
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Q135
Open questionThe action performed by the following instruction of 8086.
MOV [1234H], AX
MOV [1234H], AX
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Q136
Open questionWhat is the maximum number of I/O devices can be interfaced with 8085 using I/O mapping of I/O device technique?
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Q137
Open questionWhich one of the following is not correct?
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Q138
Open questionAn 8085 assembly language program is given below. Assume that the carry flag is initially unset. The content of the accumulator after the execution of the program is
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Q139
Open questionIntel 8080 microprocessor has an instruction set of 91 instruction. The op-code to implement this instruction set should be minimum
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Q140
Open questionWhen the 8085 receives an interrupt on its INTR pin:
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